LC-37D90U
5 – 26
2.6. VHiTMDS341+-1Y (ASSY: IC1507)
3-TO-1 DVI/HDMI SWITCH
• Block Diagram [VHiTMDS341+-1Y (ASSY: IC1507)]
• Pin Function [VHiTMDS341+-1Y (ASSY: IC1507)]
Pin No. Pin name I/O Pin Function
6, 9, 12, 15 A11, A12, A13, A14 I Port1 TMDS positive inputs.
68, 71, 74, 77 A21, A22, A23, A24 I Port2 TMDS positive inputs.
49, 52, 55, 58 A31, A32, A33, A34 I Port3 TMDS positive inputs.
5, 8, 11, 14 B11, B12, B13, B14 I Port1 TMDS negative inputs.
67, 70, 73, 76 B21, B22, B23, B24 I Port2 TMDS negative inputs.
48, 51, 54, 57 B31, B32, B33, B34 I Port3 TMDS negative inputs.
4, 10, 16, 24, 30,
36, 37, 47, 53,
59, 65, 66, 72,
78
GND --- Ground.
80 HPD1 O Port1 hot plug detector output.
62 HPD2 O Port2 hot plug detector output.
44 HPD3 O Port3 hot plug detector output.
40 HPD_SINK I Sink side hot plug detector input.
High: 5-V power signal asserted from source to sink and EDI Disready.
Low: No 5-V power signal asserted from source to sink, or EDID is not ready.
1, 20, 41, 60 NC --- No connect.
42 OE I Output enable, active low.
19 PRE I Output de-emphasis adjustment.
High: 3dB
Low: 0dB
3 SCL1 I/O Port1 DDC bus clock line.
64 SCL2 I/O Port2 DDC bus clock line.
46 SCL3 I/O Port3 DDC bus clock line.
38 SCL_SINK I/O Sink side DDC bus clock line.
2 SDA1 I/O Port1 DDC bus data ine.
63 SDA2 I/O Port2 DDC bus data ine.
45 SDA3 I/O Port3 DDC bus data ine.
39 SDA_SINK I/O Sink side DDC bus data line.
21, 22, 23 S1, S2, S3 I Source selector input.
7, 13, 17, 27, 33,
43, 50, 56, 61,
69, 75, 79
VCC --- Power supply.
18 VSADJ I TMDS compliant voltage swing control.
34, 31, 28, 25 Y1, Y2, Y3, Y4 O TMDS positive outputs.
35, 32, 29, 26 Z1, Z2, Z3, Z4 O TMDS negative outputs.
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